<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input clearable @clear="getGoodsList" v-model="queryInfo.query" placeholder="请输入内容">
            <el-button @click="getGoodsList" slot="append" icon="el-icon-search"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4"><el-button @click="goAddPage" type="primary">添加商品</el-button></el-col>
      </el-row>
      <!-- 表格区 -->
      <el-table :data="goodslist" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column width="95px" label="商品价格(元)" prop="goods_price"></el-table-column>
        <el-table-column width="70px" label="商品重量" prop="goods_weight"></el-table-column>
        <el-table-column width="140px" label="创建时间" prop="add_time">
          <!-- 使用作用域插槽调用时间过滤器 -->
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column width="130px" label="操作">
          <template slot-scope="scope">
            <el-button size="mini" type="primary" icon="el-icon-edit"></el-button>
            <el-button @click="removeById(scope.row.goods_id)" size="mini" type="danger" icon="el-icon-delete"></el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <!-- 分页区 -->
    <el-pagination
      background
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[5, 10, 15, 20]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
    >
    </el-pagination>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 请求参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10,
      },
      //商品列表
      goodslist: [],
      //总数居条数
      total: 0,
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    //   获取商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) return this.$message.error('获取商品列表失败')
      this.$message.success('获取商品列表成功')
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    // 监听pagesize改变
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 监听pagenum改变
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 根据id删除当前行
    async removeById(id) {
      const result = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      }).catch((err) => err)
      if (result !== 'confirm') {
        return this.$message.info('已经取消删除')
      }
      const { data: res } = await this.$http.delete('goods/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除商品失败')
      this.$message.success('删除商品成功')
      this.getGoodsList()
    },
    // 点击添加跳转到添加商品页面
    goAddPage() {
      this.$router.push('/goods/add')
    },
  },
}
</script>

<style lang="less" scoped>
</style>